Q: Is 10,721,220 a Composite Number?

Why is 10,721,220 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 10,721,220 can be evenly divided by 1 2 3 4 5 6 10 12 15 17 20 23 30 34 46 51 60 68 69 85 92 102 115 138 170 204 230 255 276 340 345 391 457 460 510 690 782 914 1,020 1,173 1,371 1,380 1,564 1,828 1,955 2,285 2,346 2,742 3,910 4,570 4,692 5,484 5,865 6,855 7,769 7,820 9,140 10,511 11,730 13,710 15,538 21,022 23,307 23,460 27,420 31,076 31,533 38,845 42,044 46,614 52,555 63,066 77,690 93,228 105,110 116,535 126,132 155,380 157,665 178,687 210,220 233,070 315,330 357,374 466,140 536,061 630,660 714,748 893,435 1,072,122 1,786,870 2,144,244 2,680,305 3,573,740 5,360,610 and 10,721,220, with no remainder.

Since 10,721,220 cannot be divided by just 1 and 10,721,220, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).